Method of stabilization of kinetically controlled triaryl phosph

Details Method of stabilization of kinetically controlled triaryl phosph Method of stabilization of kinetically controlled triaryl phosph

1979-02-01

1980-12-23

Sutto, Anton H.

Chemistry of carbon compounds

Dipeptides, e.g., aspartame, anserine, carnosine, etc.

260960, C07F 914

Patent

active

042409888

ABSTRACT:
The kinetically controlled products of the reaction of triaryl phosphites and bromine or chlorine are stabilized by the presence of tertiary amine bases or halide complexing reagents. The stabilized halogenating reagents are useful in the preparation of 3-halo-3-cephem antibiotic compounds.

REFERENCES:
patent: 2114866 (1938-04-01), Vaughn

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